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<h2><code><a class="back" title="Return to index" href="../index.html#current_protocol1">current_protocol/1</a></code></h2>
<h4>Description</h4>
<blockquote>
<pre>
current_protocol(Protocol)
</pre>
<p>
Enumerates, by backtracking, all currently defined protocols. All protocols are found, either static, dynamic, or built-in.
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</blockquote>
<h4>Template and modes</h4>
current_protocol(?protocol_identifier)
<h4>Errors</h4>
<dl>
<dt>Protocol is neither a variable nor a valid protocol identifier:</dt>
<dd><code>type_error(protocol_identifier, Protocol)</code></dd>
</dl>
<h4>Examples</h4>
| ?- current_protocol(listp).
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Last updated on: October 21, 2001
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